横向
1
Rectangle with four equal sides
3
Number divisible only by 1 and itself
4
Exact correspondence on both sides
7
Repeated addition
9
The number representing nothing
10
Part of a line with two endpoints
纵向
2
Divisible by two
3
Number greater than zero
5
Mathematical rule or equation
6
Value that does not change
8
Distance from center to edge of circle